Charles Darwin is generally credited with
A. developing the concept of natural selection.
B. developing the concept of genetic concept.
C. developing the concept of sexual dimorphism.
D. All of these are correct.
Answer: A
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Incinerating organic wastes and placing the ash in landfills usually produces
A) less settling. B) more decomposition. C) significantly more leaching. D) increased methane production.
Scotland's "silicon glen" is an example of a Eurozone, an area of technology-related manufacturing, research, and design
Indicate whether the statement is true or false
The newest bonanza for recycling scarce and toxic metals is to recover them from ________
A) car batteries B) e-wastes such as computers C) construction dump sites D) compact discs, LPs and 8-track tapes E) landfills from the 1960s
Which of the following is not an environmental control that may help determine the species which occupy an ecosystem?
a. the age of the ecosystem b. the intensity of sunlight c. the texture and chemistry of the soil d. other plants and animals